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Q.

Two Polaroids P1 and P2 are placed with their axis perpendicular to each other. Unpolarised light lo is incident on P1. A third polaroid P3 is kept in between P1 and P2 such that its axis makes an angle 45° with that of P1. The intensity of transmitted light through P2 is

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An Intiative by Sri Chaitanya

a

I0/16

b

I0/2

c

I0/4

d

I0/8

answer is D.

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Detailed Solution

I=I02×cos245×cos245°=I08

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